Towards Stereoselective Synthesis of the C(31)-C(39) and C(20)-C(27) Fragments of Phorboxazole A
作者:Kammari Bal Raju、Bejjanki Naveen Kumar、Bandari Sampath Kumar、Kommu Nagaiah
DOI:10.1002/hlca.201400279
日期:2015.3
The stereoselective synthesis of the C(31)–C(39) and C(20)–C(27) fragments of phorboxazole A (1) was achieved from commercially available and inexpensive D‐mannitol. Crimmins aldol reaction and a decarboxylative Claisen‐type reaction are the key steps for the C(31)–C(39) fragment, and L‐proline‐catalyzed aldol reaction, Sharpless asymmetric epoxidation, and epoxide ring opening reaction with Gilman's
佛波唑A(1)的C(31)–C(39)和C(20)–C(27)片段的立体选择性合成是通过市售和廉价的D-甘露醇实现的。crimmins aldol反应和Claisen型脱羧反应是C(31)-C(39)片段的关键步骤,L-脯氨酸催化的aldol反应,Sharpless不对称环氧化和吉尔曼试剂的环氧化物开环反应是phorboxazole的C(20)–C(27)片段的关键步骤。